C6 H12 O6(/) –> 2C2 H5 OH(/) + 2CO2(g) Which of the following statements correctly compares the mass of the reactant with the mass of the products in this equation? A The mass of the reactant is half the mass of the products. B The mass of the reactant is twice the mass of the products. C The mass of the reactant is one-fourth the mass of the products. D The mass of the reactant is the same as the mass of the products.

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

How many moles of al3+ ions are in 1.25 moles of al2o3